30results about How to "High temperature conductivity" patented technology

The invention relates to a fibre reinforced inorganics exchange membrane doped with fluorine-containing protons and a method for making the same. The invention belongs to the functional polymer composite material field. The exchange membrane consists of fluorine-containing sulfonic acid resin, reinforced fibre and inorganics. The method comprises the following steps that: the fluorine-containing sulfonic acid resin is dissolved by a polar solvent to form a fluorine-containing sulfonic acid resin solution; the inorganics are scattered in the prepared fluorine-containing sulfonic acid resin solution; the fibre is scattered in the polar solvent and stirred with ultrasonic or at a high speed to obtain a fibre dispersion; the fibre dispersion and the fluorine-containing sulfonic acid resin solution with the scattered inorganics are mixed and form a membrane by adopting the processes of cast soldering, flow casting, silk screen printing, painting or dipping; and the membrane is subject to thermal treatment at a temperature of between 50 and 300 DEG C for 0.5 to 600 minutes and is stripped, so the fibre reinforced inorganics exchange membrane doped with the fluorine-containing protons is obtained. The fluorine-containing sulfonic acid membrane prepared by the method has good water-retaining performance and high proton conductivity and mechanical performance.

The present invention relates to a composite ion-exchange membrane that can exhibit good conductivity at high temperatures, methods to produce the polymer membrane, membrane-electrode assemblies that comprise one or more of such polymers, and polymer electrolyte fuel cells that comprise one or more of such electrode assemblies.

The invention relates to a method for realizing high-temperature rubber conduction by using vapor-phase deposited graphene, and belongs to the application field of graphene composite conductive materials. This technology uses the plasma enhanced vapor deposition (PECVD) method to deposit graphene film on the top layer of high-temperature rubber, and utilizes the electrical conductivity, flexibility and ductility of graphene to realize high-temperature rubber and graphite through the close combination of graphene and high-temperature rubber. When stretched or twisted, ene produces synchronous strain, which makes the rubber conductive in different forms, thereby changing the functional properties of electricity and stability. And this conductivity can exist stably under different shapes or temperature conditions, the effect is obvious, and the method is simple.

The invention provides an anode of a high-temperature solid-state fuel cell. The anode adopts the structure that nickel or / and a nickel compound is replaced by a ceramic high-temperature conductive material, on one hand, the ceramic high-temperature conductive material does not change structurally along with the oxidation-reduction reaction of the cell to avoid performance reduction caused by structural damage of the cell, on the other hand, the ceramic high-temperature conductive material can separate nickel particles microcosmically to inhibit growth of the nickel particles, so as to facilitate performance stability improvement of the cell, and prolong the service life of the cell. Besides, for a cell stack unit comprising the anode, the cathode active layer, the cathode buffer layer, and / or the connecting part protective layer of the cell stack unit also comprise(s) the ceramic high-temperature conductive material, so as to further improve the conductivity of the cell stack unit.

The invention discloses a CeO2-doped Cu / Mn composite film / microcrystalline interface layer and a metal-based composite connector and a preparation method thereof, and relates to the field of metal connector composite materials for solid oxide fuel cells. Firstly, it is deposited by high-energy micro-arc alloy technology The microcrystalline transition layer of the matrix material; and then use the electrochemical deposition method to composite metal-plated Cu combined with nano-scale CeO 2 Composite film of particles; then electrochemically deposited metal Mn as the outer layer of the whole composite. Among them, a certain amount of nano-scale CeO added during electrodeposition of Cu coating 2 To refine the coating grains, improve the high-temperature diffusion of elements and the high-temperature oxidation resistance of the composite layer. The beneficial effects are: the prepared microcrystalline interface layer and the metal-based composite connector have strong electrical conductivity and excellent high-temperature oxidation resistance, and can effectively prevent the out-diffusion of Cr elements in the metal substrate to improve the performance of solid oxide fuel cells. The life and working efficiency of metal connectors.

The invention relates to a doped crosslinking chemical stable ion exchange membrane, which belongs to the field of functional polymer composite materials. The doped crosslinking chemical stable ion exchange membrane is a perfluorinated ion exchange membrane which is formed by taking perfluorinated ion exchange resin with crosslinking sites as film-forming resin and simultaneously doping an inorganic substance with a water holding function or a proton conduction assisting function and a substance with a function of eliminating free radicals into the film-forming resin, so the chemical stability of the improved ion exchange membrane is greatly improved.

The invention discloses a siliceous refractory mud with excellent high-temperature performance. The powder composition is as follows in terms of mass percentage: waste silica brick powder 0.5-0mm, 20-50%; quartz powder 0.3-0mm, 15-35%; quartz powder 0.088-0mm, 25-45%; silicon carbide dusting powder 1-3%; silica micropowder 1-3%; dextrin 1-1.5%; carboxymethyl cellulose 0.1-0.5%; ~0.2%; mixed with water accounting for 27~30wt% of the powder. The siliceous refractory mud provided by the invention has a silicon dioxide content greater than or equal to 94%, does not add raw clay, sodium bentonite, etc., has low alumina content, low low melt content, and a high load softening temperature point. At the same time, the addition of waste silica brick powder realizes the secondary utilization of resources, and the waste silica brick powder basically exists in the phosphorous quartz phase, which has good volume stability and matches the material of the silica bricks. noodle.

A bonding layer slurry preparation material, preparation method and gas sensor, the bonding layer slurry preparation material includes the following components in terms of mass percentage: 36% to 77% of zirconia powder; 1% of yttrium oxide powder ~7%; inorganic additives 1%~5%; organic solvents 16%~35%; organic vehicles 3%~7%; organic additives 2%~9%; At least one of cellulose, polyvinyl butyral, dioctyl adipate, dibutyl sebacate, and dibutyl phthalate. The adhesive layer slurry prepared from the adhesive layer preparation material has good leveling, adhesion and film-forming properties, and the adhesive layer prepared by using the adhesive layer slurry can especially strengthen the interlayer of YSZ cast sheet. Bond strength and sintering with other materials for oxygen and nitrogen oxygen sensors are well matched. Because the adhesive layer prepared by using the slurry has high bonding strength and matching shrinkage rate, it can be applied to oxygen sensors and nitrogen oxygen sensors, and can improve their performances such as air tightness and mechanical properties.

A thermocouple protection casing, including corundum outer casing, titanium dioxide bonding layer, white steel inner casing, connecting flange, asbestos rope, connecting pipe and wire head. The method is: (1), mix and stir the titanium dioxide and sodium silicate aqueous solution evenly to obtain a titanium dioxide paste; (2), pour the prepared titanium dioxide paste into the corundum outer tube and fill it; (3), put After the asbestos rope is dipped in the titanium dioxide paste, it is wound around the back of the corundum outer casing and inserted into the connecting pipe; (4) insert the white steel inner casing into the corundum outer casing filled with titanium dioxide paste, and drain the overflowing titanium dioxide (5) After standing at room temperature for 18h to 24h, weld the connecting flange to the front end of the connecting pipe, and weld the wire head to the open end of the white steel inner sleeve to make a thermocouple protection sleeve. The advantage is that the thermocouple protection sleeve is suitable for normal operation under high temperature, high pressure, corrosion and wear titanium dioxide production conditions, and can prolong the service life of the thermocouple protection sleeve.